byte[] mac = PacMac.calculateMacArcfourHMACMD5(usage, makeKey(keyb, 23), datab);
        checkBytes(javaMac, mac);
        checkBytes(Hex.decode(expect), javaMac);
        checkBytes(Hex.decode(expect), mac);
    }


    @Test
    public void testPACAESChecksum () throws GeneralSecurityException {
        String expect = "04EDBD6302A523C038391974";